I don’t know how it ___________ that our car was bumped from behind.

My chest _____ when I take a deep breath, doctor.

Some people go back for their education to ________ another degree or diploma (文凭) to impress the society.

Would you please _________ my good wishes to your parents?

The new tax would force companies to __________energy-saving measures.

Would you _________ her novels as serious literature or mere entertainment?

Can $ 500 _________ the cost of the whole trip?

The old couple will never _____ the loss of their son.

He couldn’t stand the noise made by the factory, so he wrote a letter to the newspaper to _________ about it.

Lisa made a(n) _____ to help her husband with the problem, but failed in the end.